a wood stripped threads solution ? Methyl methacrylate

G

greekdude

New member
Hello, I just found this :
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at our local Lidl (a german-austrian market chain) with many cheap but good quality foods/clothing/tools, etc..

Well this thing is tough! I filled a 8mm dia hole, then tapped it and screwed a wood screw, 5mm ext dia, 3.9mm inner thread. By screwing the wood screw by hand, I could not remove it using all my strength, pulling with a pliers. Here are some shots :

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Screwing unscrewing feels more like rosewood than beech. And feels stronger, harder yet more flexible than epoxy.

What's the deal with this stuff? Do you guys have it in the USA? And if not, maybe cause it is alergic, or hazardous ?
 
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Re: a wood stripped threads solution ? Methyl methacrylate

I've never seen it anywhere personally, but it sounds intriguing! I have one guitar that keeps receiving fatter screws as they strip out... think I'm up to a railroad spike now!
 
Re: a wood stripped threads solution ? Methyl methacrylate

lol! Hi,
I don't know if this brand is available over there, but I think permatex makes MMA based adhesives.
 
Re: a wood stripped threads solution ? Methyl methacrylate

BriGuy1968 said:
I've never seen it anywhere personally, but it sounds intriguing! I have one guitar that keeps receiving fatter screws as they strip out... think I'm up to a railroad spike now!
Click to expand...

By now you should have tried filling and redrilling. After trying ONE larger screw, it's time. Heck, just stick some toothpicks with Elmer's glue in the hole and drill for the small screw...good as new.
 
Re: a wood stripped threads solution ? Methyl methacrylate

GuitarDoc said:
By now you should have tried filling and redrilling. After trying ONE larger screw, it's time. Heck, just stick some toothpicks with Elmer's glue in the hole and drill for the small screw...good as new.
Click to expand...

Yup. Just pick up a box of the crappiest toothpicks at the dollar store. Put a little bit of wood glue in the hole and then start jamming toothpicks in. Let it dry, and you're good to go.

The box should last forever. :D
 
Re: a wood stripped threads solution ? Methyl methacrylate

I did the toothpick and plug/redrill fix many times, even bought/made tools to cut my own dowels using various methods and tested all of them with various glues. But Guys this stuff is used in prosthetic hips, knees and other artificial parts in the human body. I'd trust this to screw holes in rather than toothpicks. IMHO we have a new player in the "make-a-new-thread-in-the-wood" game. I'll try this in a real guitar, I hope soon.
 
Re: a wood stripped threads solution ? Methyl methacrylate

i love this stuff and id bet it would work as well..never used it on a guitar body but have on other things like a pickguard..no need to tap anything either.. just need the screw you will use and some wd-40:)..VERY versatile stuff but you must work with it outside.. even a well ventilated area might not be enough unless you have a suction fan
http://www.plast-aid.com/
 
Re: a wood stripped threads solution ? Methyl methacrylate

^^^ true ventilation is a must have, also maybe gloves are needed, and maybe mask. In the link you posted I see an icon showing working on it with hands. Maybe this type has some extra protection, but the one I tried definitely cause itchiness if touched by bare hands.
 
Re: a wood stripped threads solution ? Methyl methacrylate

greekdude said:
^^^ true ventilation is a must have, also maybe gloves are needed, and maybe mask. In the link you posted I see an icon showing working on it with hands. Maybe this type has some extra protection, but the one I tried definitely cause itchiness if touched by bare hands.
Click to expand...

well.. that can be molded or shaped.. etc..impractical top dop with gloves so no need for gloves... lol its like a putty at one stage in its curing process. you let the stuff dry on your hands.. then rub/peel it off... literally no mess or irritation ..only thing you gotta watch out for.. it has a very strong odor once its starts curing.. takes 15 minutes to cure... i still let it sit a few hours just to be on the safe side
 
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